MAXIMUM RANGE: The range depends on the number and material of walls in the space. Steel reinforced concrete will have the most significant effect. Wood and drywall will have much less of an impact.We recommend the following:*Room to Room: 70 feet*Same Room: 150 feet*Same Room, Line of Site: 250 feet

DIMMING: The speakers are operable when the MonoRail system isdimmed. The maximum speaker volume may be limited based on thelevel of dimming along with the type of dimmer and power supply.

MAXIMUM NUMBER OF SPEAKERS: No limit.

SPEAKER CHANNELS: Includes easy switch on the back of thespeaker to select either left, right or mono (left + right).

WIRELESS TRANSMITTER: The transmitter plugs into almost any audiodevice (with included or optional accessories).*USB: connects to a computer's USB port.*3.5mm Earphone jack: connects to nearly any portable audiosystem like iPod/iPhone® or other MP3 players.*RCA jack: connects to receiver, stereo, or television (cordsnot included).*Includes plug-in power supply when using on any device other thana computer which delivers power through the USB connection.

FREQUENCY: The transmitter operates at 2.4 GHz allowing itto transmit further distances when compared to 5.4 GHz. Whilenumerous devices run on this frequency, we have tested the speakers withmost common devices without any interference issues. While we don'tanticipate any interference issues, it is theoretically possible thatin areas of extreme congestion, some interference could occur. Shouldinterference occur, we recommend changing the zone as below.

THREE ZONE CAPABILITY: If using multiple sets of speakers indifferent locations, this allows them to be controlled individually.The zone can be adjusted on the transmitter and the speakers.

INFRARED REMOTE CONTROL: Includes power and volume control andfour pre-set equalizer options: the user can control the speakers individually(e.g. they don't all have to be at the same volume level). The remote cantransmit approximately 30 feet within line of site.

The 15W speakers operate on our 12 volt or 24 volt low-voltage FreeJack systems. Using the adapters the speakers can also be mounted to Tech Lighting's T~TRAK system, most popular track lighting systems, and most 6 inch recessed downlights.